Facile synthesis of well dispersed Pd nanoparticles on reduced graphene oxide for electrocatalytic oxidation of formic acid

• Tipo: Artigo em Revista Científica Internacional
• Data: 2017

Autores

Krishna, R (Autor) Outra; Diana M Fernandes (Autor) FCUP; Marinoiu, A (Autor) Outra; ventura, j. (Autor) FCUP; Cristina Freire (Autor) FCUP; Titus, E (Autor) Outra

Revista

Título: International Journal of Hydrogen Energy

Vol. 42 Nº 19

ISSN: 0360-3199

Editora: Elsevier

Indexação

ISI Web of Knowledge - 19 Citações

Scopus - 19 Citações

Outras Informações

ID Authenticus: P-00N-40V

DOI: 10.1016/j.ijhydene.2017.04.263

Abstract (EN): In present study, we report a facile synthesis of crystalline, small size Pd nanoparticles (NPs) on reduced graphene oxide (RGO) abbreviated as Pd/RGO for electrocatalytic oxidation of formic acid (FA). Here, first graphene oxide (GO) was reduced by the green method using l-ascorbic acid and citric acid and further Pd NPs were decorated on RGO by a facile method without using any reducing agents. The reduction of GO to RGO and synthesis of Pd NPs was confirmed by the X-ray diffraction (XRD) and X-ray photoelectrons (XPS) techniques. Surface morphology of Pd/RGO nanocomposite was evaluated by the scanning electron microscopy (SEM) and transmission electron microscopy (TEM) techniques. The electrocatalytic behavior of Pd/RGO nanocomposite was tested by using of cyclic voltammetric (CV) technique for electro-oxidation of FA in mixed solution of 0.5 M HCOOH + 0.5 H2SO4 at RT. Results shows that the higher electrocatalytic activity of Pd/RGO nano composite compare to Pd NPs.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8